FI129870B - Chain saw - Google Patents

Chain saw

Info

Publication number
FI129870B
FI129870B FI20205332A FI20205332A FI129870B FI 129870 B FI129870 B FI 129870B FI 20205332 A FI20205332 A FI 20205332A FI 20205332 A FI20205332 A FI 20205332A FI 129870 B FI129870 B FI 129870B
Authority
FI
Finland
Prior art keywords
swing body
chain saw
chainsaw
actuator
tension
Prior art date
Application number
FI20205332A
Other languages
Finnish (fi)
Swedish (sv)
Other versions
FI20205332A1 (en
Inventor
Paavo Alhainen
Original Assignee
Kesla Oyj
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Kesla Oyj filed Critical Kesla Oyj
Priority to FI20205332A priority Critical patent/FI129870B/en
Priority to SE2150192A priority patent/SE544677C2/en
Publication of FI20205332A1 publication Critical patent/FI20205332A1/en
Application granted granted Critical
Publication of FI129870B publication Critical patent/FI129870B/en

Links

Classifications

    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
    • A01G23/00—Forestry
    • A01G23/02—Transplanting, uprooting, felling or delimbing trees
    • A01G23/08—Felling trees
    • A01G23/083—Feller-delimbers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27B—SAWS FOR WOOD OR SIMILAR MATERIAL; COMPONENTS OR ACCESSORIES THEREFOR
    • B27B17/00—Chain saws; Equipment therefor
    • B27B17/14—Arrangements for stretching the chain saw
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
    • A01G23/00—Forestry
    • A01G23/02—Transplanting, uprooting, felling or delimbing trees
    • A01G23/08—Felling trees
    • A01G23/081—Feller-bunchers, i.e. with bunching by felling head
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
    • A01G23/00—Forestry
    • A01G23/02—Transplanting, uprooting, felling or delimbing trees
    • A01G23/08—Felling trees
    • A01G23/091—Sawing apparatus specially adapted for felling trees
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
    • B23D57/00—Sawing machines or sawing devices not covered by one of the preceding groups B23D45/00 - B23D55/00
    • B23D57/02—Sawing machines or sawing devices not covered by one of the preceding groups B23D45/00 - B23D55/00 with chain saws

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Ecology (AREA)
  • Environmental Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Sawing (AREA)
  • Harvesting Machines For Root Crops (AREA)
  • Surface Acoustic Wave Elements And Circuit Networks Thereof (AREA)

Abstract

Uppfinningen avser justering av kedjespänningenhos en motorsåg (100) vid ett skördaraggregat. Förfarandet innefattar stegen att reglera det första manöverdonet i kedjesågens (100) svängkropp (110) genom hydrauliskt tryck och baserat på detta, förflyttas bladflänsen (120) relativt svängkroppen (110) för att justera kedjespänningen, varvid då spänningen uppnår ett förutbestämt värde, styrs ytterligare ett andra ställdon i svängkroppen, så att bladflänsen ingriper med svängkroppen. Uppfinningen avser vidare en motorsåg och ett skördaraggregat.The invention relates to adjusting the chain tension of a chainsaw (100) at a harvester unit. The method includes the steps of regulating the first actuator in the swing body (110) of the chain saw (100) by hydraulic pressure and based on this, the blade flange (120) is moved relative to the swing body (110) to adjust the chain tension, whereby when the tension reaches a predetermined value, further control a second actuator in the swing body, so that the blade flange engages with the swing body. The invention further relates to a chainsaw and a harvester unit.

FI20205332A 2020-04-01 2020-04-01 Chain saw FI129870B (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
FI20205332A FI129870B (en) 2020-04-01 2020-04-01 Chain saw
SE2150192A SE544677C2 (en) 2020-04-01 2021-02-24 Method for adjusting the tightness of a saw chain of a chain saw, a chain saw and a harvester head

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FI20205332A FI129870B (en) 2020-04-01 2020-04-01 Chain saw

Publications (2)

Publication Number Publication Date
FI20205332A1 FI20205332A1 (en) 2021-10-02
FI129870B true FI129870B (en) 2022-10-14

Family

ID=78287388

Family Applications (1)

Application Number Title Priority Date Filing Date
FI20205332A FI129870B (en) 2020-04-01 2020-04-01 Chain saw

Country Status (2)

Country Link
FI (1) FI129870B (en)
SE (1) SE544677C2 (en)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE512961C2 (en) * 1997-02-06 2000-06-12 Sisu Logging Ab Valve means for tensioning the saw chain
FI115706B (en) * 1999-05-27 2005-06-30 Ponsse Oyj Chain saw
SE536987C2 (en) * 2012-05-03 2014-11-25 Jps Teknik Ab Procedure and arrangement of a chainsaw
NZ615444A (en) * 2013-09-12 2014-12-24 Waratah Nz Ltd Saw apparatus with chain stretch detection

Also Published As

Publication number Publication date
SE2150192A1 (en) 2021-10-02
FI20205332A1 (en) 2021-10-02
SE544677C2 (en) 2022-10-11

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